Set includes 3 pistons, 3 sets of rings, 3 piston pins and clips all manufactured by JE Pistons.

Piston type: dome

Net piston volume: -5.6

Bore: 3.937 (100.00mm)

Dome height: .040 (1.02mm)

Comp. dist: 1.228 (31.19mm)

Intake: .260 (6.60mm) 18 deg

Exhaust: .246 (6.25mm) 18 deg

Valve pocket depth measured from deck



Groove Width Land Width

Top: .0383 (.97mm) .275 (6.99mm)

2nd: .048 (1.22mm) .140 (3.56mm)

Oil: .0795 (2.02mm) .090 (2.29mm)



Radial Depths

Top: .137 (3.48mm)

2nd: .177 (4.50mm)

Oil: .115 (2.92mm)



Pin dia: .866 (22.00mm)

Pin length: 2.250 (57.15mm)

JE .063 Wire Locks

Actual weight: 454 grams



IMPORTANT CLEARANCE INFORMATION GUIDELINES ONLY.

Set clearance to .0035 (.0889mm). Some applications may require more clearance. Measure piston diameter .275 (7mm) from bottom of piston skirt.



Applications

ALL Sea-Doo 300 HP 1630 models: